France, June 18 -- Hundreds of men armed with whips and clubs, known locally as 'goons', attacked groups of protesters in Kenya on Tuesday. The demonstrations were sparked by the recent death of a man while in police custody. According to reports, one person was killed during Tuesday's unrest, and a Kenyan police officer has since been arrested in connection with the shooting.

One person was killed in the Kenyan capital on Tuesday during protests, according to a witness,cited in Reuters news agency, who reported seeing the body of a man lying on the ground with a bleeding head wound. The cause of the fatal injury was not immediately clear.

Kenyan police were seen firing tear gas at protesters.

A police spokesperson later confirmed that...